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NA names don't get backticked during printing #206

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jennybc opened this issue Jan 6, 2017 · 1 comment · Fixed by #207
Closed

NA names don't get backticked during printing #206

jennybc opened this issue Jan 6, 2017 · 1 comment · Fixed by #207

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@jennybc
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@jennybc jennybc commented Jan 6, 2017

readxl currently makes tibbles with NA names and then they can't be printed.

Before the PR

library(tibble)

tb <- tibble(
  x = 1,
  y = 2,
  z = 3
)
## just one NA name is OK
colnames(tb)[1] <- NA
tb
#> # A tibble: 1 × 3
#>      NA     y     z
#>   <dbl> <dbl> <dbl>
#> 1     1     2     3
## but >1 is not
colnames(tb)[2] <- NA
tb
#> Error in x[needs_ticks] <- paste0("`", gsub("`", "\\\\`", x[needs_ticks]), : NAs are not allowed in subscripted assignments

And after:

library(tibble)

tb <- tibble(
  x = 1,
  y = 2,
  z = 3
)
## just one NA name is OK
colnames(tb)[1] <- NA
tb
#> # A tibble: 1 × 3
#>    `NA`     y     z
#>   <dbl> <dbl> <dbl>
#> 1     1     2     3
## but >1 is not
colnames(tb)[2] <- NA
tb
#> # A tibble: 1 × 3
#>    `NA`  `NA`     z
#>   <dbl> <dbl> <dbl>
#> 1     1     2     3
@krlmlr krlmlr closed this in #207 Jan 7, 2017
krlmlr added a commit that referenced this issue Jan 7, 2017
krlmlr added a commit that referenced this issue Jan 9, 2017
- Test R 3.1.3 and later in AppVeyor, using `Depends: R (>= 3.1.0)` in `DESCRIPTION`. Support for R 3.0.0 requires a `lazyeval` update (#189).
- An attempt to partially update a missing column now throws a clearer warning (#199).
- Time series matrices (objects of class `mts` and `ts`) are now supported in `as_tibble()` (#184).
- An attempt to call `add_row()` for a grouped data frame results in a helpful error message (#179).
- The `all_equal()` function (called by `all.equal.tbl_df()`) now forwards to `dplyr` and fails with a helpful message if not installed. Data frames with list columns cannot be compared anymore, and differences in the declard class (`data.frame` vs. `tbl_df`) are ignored. This ensures consistent behavior of this function, regardless if `dplyr` is loaded or not (#198).
- Backtick `NA` names in printing (#206, #207, @jennybc).
krlmlr added a commit that referenced this issue Apr 1, 2017
Bug fixes
=========

- Time series matrices (objects of class `mts` and `ts`) are now supported in `as_tibble()` (#184).
- The `all_equal()` function (called by `all.equal.tbl_df()`) now forwards to `dplyr` and fails with a helpful message if not installed. Data frames with list columns cannot be compared anymore, and differences in the declared class (`data.frame` vs. `tbl_df`) are ignored. The `all.equal.tbl_df()` method gives a warning and forwards to `NextMethod()` if `dplyr` is not installed; call `all.equal(as.data.frame(...), ...)` to avoid the warning. This ensures consistent behavior of this function, regardless if `dplyr` is loaded or not (#198).

Interface changes
=================

- Now requiring R 3.1.0 instead of R 3.1.3 (#189).
- Add `as.tibble()` as an alias to `as_tibble()` (#160, @LaDilettante).
- New `frame_matrix()`, similar to `frame_data()` but for matrices (#140, #168, @LaDilettante).
- New `deframe()` as reverse operation to `enframe()` (#146, #214).
- Removed unused dependency on `assertthat`.

Features
========

General
-------

- Keep column classes when adding row to empty tibble (#171, #177, @LaDilettante).
- Singular and plural variants for error messages that mention a list of objects (#116, #138, @LaDilettante).
- `add_column()` can add columns of length 1 (#162, #164, @LaDilettante).

Input validation
----------------

- An attempt to read or update a missing column now throws a clearer warning (#199).
- An attempt to call `add_row()` for a grouped data frame results in a helpful error message (#179).

Printing
--------

- Render Unicode multiplication sign as `x` if it cannot be represented in the current locale (#192, @ncarchedi).
- Backtick `NA` names in printing (#206, #207, @jennybc).
- `glimpse()` now uses `type_sum()` also for S3 objects (#185, #186, @holstius).
- The `max.print` option is ignored when printing a tibble (#194, #195, @t-kalinowski).

Documentation
=============

- Fix typo in `obj_sum` documentation (#193, @etiennebr).
- Reword documentation for `tribble()` (#191, @kwstat).
- Now explicitly stating minimum Rcpp version 0.12.3.

Internal
========

- Using registration of native routines.
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